Read the contents of your usb storage:
• Allows the app to read the contents of your USB storage..Modify or delete the contents of your usb storage:
• Allows the app to write to the USB storage..

Network:

View network connections:
• Allows the app to view information about network connections such as which networks exist and are connected..Full network access:
• Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet..
Receive data from internet:
• Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage..

Effects on battery life:

Prevent device from sleeping:
• Allows the app to prevent the device from going to sleep..